Since the release of the SpongeBob SquarePants movie, 9-foot-by-9-foot balloons bearing the underwater matinee idol's likeness have been appearing on the roofs of Burger Kings across the country. And now, sticky-fingered animaniacs are stealing them. So far more than 50 of the $500 inflatables have been swiped by people who don't have the foresight to realize that they'd be better off making a trip to Bed Bath & Beyond to pick up a $2 loofah.